During an average lifetime, the heart beats more than 2 billion times. To you, it might just be a steady “lub-dub” that speeds up under pressure and slows as you drift to sleep. But behind that rhythm ...

In a safety communication dated December 16 posted to the site of the FDA, the agency stated: “The U.S. Food and Drug Administration is alerting patients, caregivers, and health care providers about ...

If your heart beats too slowly or gets out of rhythm, a pacemaker can send an electrical pulse to that muscle and get it back on track. To do that, pacemakers need generators with batteries, and ...